It seems that the run time for Windows has changed and supports more math
functions than it used to, especially on AArch64, ARM, and AMD64.

Fixes PR40541.

Differential revision: https://reviews.llvm.org/D57625

llvm-svn: 353733

Add support for

- v4s16 <-> v4s32
- v2s64 <-> v2s32

And update tests that use them to show that we generate the correct
instructions.

Differential Revision: https://reviews.llvm.org/D57832

llvm-svn: 353732

The IR section in this test doesn't do anything, so there's no point in it
being there. Since it's redundant, just remove it.

llvm-svn: 353731

Summary:
rL189250 added a realpath call, and rL352916 because realpath breaks assumptions with some build systems. However, the /usr/lib/debug case has been clarified, falling back to /usr/lib/debug is currently broken if the obj passed in is a relative path. Adding a call to use absolute paths when falling back to /usr/lib/debug fixes that while still not making any realpath assumptions.

This also adds a --fallback-debug-path command line flag for testing (since we probably can't write to /usr/lib/debug from buildbot environments), but was also verified manually:

```
$ rm -f path/to/dwarfdump-test.elf-x86-64
$ strace llvm-symbolizer --obj=relative/path/to/dwarfdump-test.elf-x86-64.debuglink 0x40113f |& grep dwarfdump
```

Lookups went to relative/path/to/dwarfdump-test.elf-x86-64, relative/path/to/.debug/dwarfdump-test.elf-x86-64, and then finally /usr/lib/debug/absolute/path/to/dwarfdump-test.elf-x86-64.

Reviewers: dblaikie, samsonov

Reviewed By: dblaikie

Subscribers: krytarowski, aprantl, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D57916

llvm-svn: 353730

llvm-svn: 353729

This is a follow up of r353706. When the scheduler fails to issue a ready
instruction to the underlying pipelines, it now updates a mask of 'busy resource
units'. That information will be used in future to obtain the set of
"problematic" resources in the case of bottlenecks caused by resource pressure.
No functional change intended.

llvm-svn: 353728

Reviewed as https://reviews.llvm.org/D57887.
Thanks to jwakely for the patch.

llvm-svn: 353727

llvm-svn: 353725

The PowerPC code generator currently scalarizes vector truncates that would fit in a vector register, resulting in vector extracts, scalar operations, and vector merges. This patch custom lowers a vector truncate that would fit in a register to a vector shuffle instead.

Differential Revision: https://reviews.llvm.org/D56507

llvm-svn: 353724

This teaches the legalizer about G_FFLOOR, and lets us select G_FFLOOR in
AArch64.

It updates the existing floating point tests, and adds a select-floor.mir test.

Differential Revision: https://reviews.llvm.org/D57486

llvm-svn: 353722

The interface changed in r353714.

llvm-svn: 353721

After the changes introduced in r353586, this instruction doesn't cause any
issues for any backend.

Original review: https://reviews.llvm.org/D57485

llvm-svn: 353720

llvm-svn: 353719

llvm-svn: 353718

Related commits: rL353691, rL353703.

llvm-svn: 353717

Add common X86/X64 prefixes (and use X86 instead of X32)

llvm-svn: 353716

%s refers to the test file in the source tree. This was accidentally added in
r351197 / 2b46d30f ("[OMPT] Second chunk of final OMPT 5.0 interface updates").

Differential Revision: https://reviews.llvm.org/D58002

llvm-svn: 353715

instead of returning the UUID through by-ref argument and a boolean
value indicating success, we can just return it directly. Since the UUID
class already has an invalid state, it can be used to denote the failure
without the additional bool.

llvm-svn: 353714

Add some common recipes for downstream users developing on top of the
existing git mirrors. These instructions show how to migrate local
branches to the monorepo.

Differential Revision: https://reviews.llvm.org/D56550

llvm-svn: 353713

Summary:
This patch contains two parts:

1) reverts commit r353306.
2) move the format logic out from tweaks, keep tweaks API unchanged.

Reviewers: sammccall, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58051

llvm-svn: 353712

+ Removed trailing whitespace.

llvm-svn: 353711

llvm-svn: 353710

Summary:
`clang-cl` can't compile tests containing `char16_t` and `char32_t` types
without the MSVC compatibility option passed. This patch adds the option to the
`clang-cl` call in the `build.py` script by default.

Reviewers: zturner, labath, stella.stamenova, serge-sans-paille

Reviewed By: labath

Subscribers: lldb-commits, leonid.mashinskiy

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D57809

llvm-svn: 353709

Summary:
For example, if an index symbol has location in a .proto file and an AST symbol
has location in a generated .proto.h file, then we prefer location in .proto
which is more meaningful to users.

Also use `mergeSymbols` to get the preferred location between AST location and index location in go-to-def.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58037

llvm-svn: 353708

The python documentation says "it’s highly recommended that you use raw strings for all but the simplest expressions." (https://docs.python.org/3/library/re.html)

So do that with the attached patch generated by

    sed -i -e "s/re.search('/re.search(r'/g" $(git grep -l 're.search(')

The warning can be seen in e.g. python3.7:

    $ python3.7 -Wd
    >>> import re; re.search('\s', '')
    <stdin>:1: DeprecationWarning: invalid escape sequence \s

Commited on behalf of Marco Falke.
Differential Revision: https://reviews.llvm.org/D57528

llvm-svn: 353707

In case of bottlenecks caused by pipeline pressure, we want to be able to
correctly report the set of problematic pipelines. This is a first step towards
adding support for bottleneck hints in llvm-mca (see PR37494). No functional
change intended.

llvm-svn: 353706

llvm-svn: 353705

llvm-svn: 353704

This commit fixes the DPP sequence in the atomic optimizer (which was
previously missing the row_shr:3 step), and works around a read_register
exec bug by using a ballot instead.

Differential Revision: https://reviews.llvm.org/D57737

llvm-svn: 353703

Summary:
This adds support for auto-detection of path style to SymbolFileBreakpad
(similar to how r351328 did the same for DWARF). We guess each file
entry separately, as we have no idea which file came from which compile
units (and different compile units can have different path styles). The
breakpad generates should have already converted the paths to absolute
ones, so this guess should be reasonable accurate, but as always with
these kinds of things, it is hard to give guarantees about anything.

In an attempt to bring some unity to the path guessing logic, I move the
guessing logic from inside SymbolFileDWARF into the FileSpec class and
have both symbol files use it to implent their desired behavior.

Reviewers: clayborg, lemo, JDevlieghere

Subscribers: aprantl, markmentovai, lldb-commits

Differential Revision: https://reviews.llvm.org/D57895

llvm-svn: 353702

Fix the build helper to find lld-link via PATH lookup, rather than
making a fragile assumption that it will be present in the 'compiler
directory'.  This fixes tests on Gentoo where clang and lld
are installed in different directories.

Differential Revision: https://reviews.llvm.org/D58001

llvm-svn: 353701

Skip running lldb-mi tests when Python support is disabled.  This causes
lldb-mi to unconditionally fail, and therefore all the relevant tests
fail as well.

Differential Revision: https://reviews.llvm.org/D58000

llvm-svn: 353700

This reverts commit r353610.
It causes a miscompile visible in macro expansion in a bootstrapped clang.

http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20190211/626590.html

llvm-svn: 353699

There are certain unsafe or deprecated (since C11) buffer handling
functions which should be avoided in safety critical code. They
could cause buffer overflows. A new checker,
'security.insecureAPI.DeprecatedOrUnsafeBufferHandling' warns for
every occurrence of such functions (unsafe or deprecated printf,
scanf family, and other buffer handling functions, which now have
a secure variant).

Patch by Dániel Kolozsvári!

Differential Revision: https://reviews.llvm.org/D35068

llvm-svn: 353698

llvm-svn: 353697

Reviewers: hokein

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D57950

llvm-svn: 353696

Summary:
Parameters in declarations are useful for clangd, so that we can
provide symbol information for them as well. It also helps clangd to be
consistent whether a function's definition is accessible or not.

Reviewers: hokein, akyrtzi

Subscribers: ilya-biryukov, ioeric, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D57949

llvm-svn: 353695

llvm-svn: 353694

llvm-svn: 353693

The v8m.base ISA contains movw, which can operate on an unsigned
16-bit value. Add the pattern that converts an add with a negative
value, that could fit into 16-bits when negated, into a sub with that
positive value.

Differential Revision: https://reviews.llvm.org/D57942

llvm-svn: 353692